Maxcom MM821 User Manual page 22

stasus.
Human voice prompt:can open|the close
report read a telephone this number
The status of Memory:View the status
of phonebook, including SIM card and
phone memory.
SMS is a kind of network service that cannot be
used to send and receive short messages until you
apply to the network operator.
If the message box is full, there would be a
flashing message icon informing you. That means you
should clean your message box in order to receive
message normally.
SMS
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